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Exclusion principle inhibition of bound hyperon mesonic decay

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Il Nuovo Cimento (1955-1965)

Summary

An explanation is given of the variation withA, Z, of 1): the ratio of the probabilities of mesonic to nonmesonic decay of hyperfragments and 2) : the mean life of the hyperfragments. The explanation involves an exclusion principle inhibition of the bound hyperon mesonic decay. Some evidence is presented in favor of a Λ0 hyperon spin and parity (relative to a nucleon) of 1/2 (or less probably, of 1/2+ or 3/2+).

Riassunto

Si dà una spiegazione della variazione conA, Z: 1) del rapporto delle probabilità dei decadimenti mesonico e non mesonico degli iperframmenti; 2) della vita media degli iperframmenti. La spiegazione richiede l’inibizione del principio d’esclusione riferito al decadimento mesonico dell’iperone legato. Si presentano deboli prove in favore di spin e parità di un iperone Λ0 (rispetto a un nucleone) 1/2 (o, meno probabilmente,.

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References

  1. W. Cheston andH. Primakopf:Phys. Rev.,92, 1537 (1953).

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  2. H. Primakoff:Proceedings of the Fifth Annual Rochester Conference on High-Energy Physics (New York, 1955), p. 174.

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Assisted by the joint program of the U.S.O.N.R. and the U.S.A.E.C.

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Primakoff, H. Exclusion principle inhibition of bound hyperon mesonic decay. Nuovo Cim 3, 1394–1399 (1956). https://doi.org/10.1007/BF02785015

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  • DOI: https://doi.org/10.1007/BF02785015

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